Indefinitely repeating outer sequence only executed once

[davebeyer]

Despite an indefinite repeatCount, the following outer sequence is only executed once:

<div data-timeContainer="seq" data-repeatCount="indefinite" data-timeAction="display">
  <div data-timeContainer="seq" data-timeAction="display">
    <p data-dur="1s"/>item A</p>
    <p data-dur="1s"/>item B</p>
    <p data-dur="1s"/>item C</p>
  </div>
  <!--  <p data-dur="1s"/>Repeat</p> -->
</div>

Note that uncommenting the "Repeat" paragraph cures the problem, so the outer sequence is repeated forever.